<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <style>
        ol {
  list-style-type: none;
}

li {
  position: relative;
  margin: 0;
  padding-bottom: 1em;
  padding-left: 20px;
}

li:before {
  content: '';
  background-color: #c00;
  position: absolute;
  bottom: 0;
  top: 0;
  left: 6px;
  width: 3px;
}

li:after {
  content: '';
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' aria-hidden='true' viewBox='0 0 32 32' focusable='false'%3E%3Ccircle stroke='none' fill='%23c00' cx='16' cy='16' r='10'%3E%3C/circle%3E%3C/svg%3E");
  position: absolute;
  left: 0;
  height: 15px;
  width: 15px;
}
    </style>



<ol>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
    <li>Item 5</li>
  </ol>
  
  
</body>
</html>